title: Knee deep in the nerve.
abstract: A 62-year-old man presented with a 3-week history of a progressive right vision loss. His right optic disk showed some mild elevation. Automated perimetry revealed a junctional scotoma. Magnetic resonance imaging of the brain showed enlargement and enhancement of the right optic nerve, chiasm, and proximal optic tract. A chiasmal biopsy revealed a lesion consistent with malignant optic glioma of adulthood.
authors.affiliation: Wills Eye Institute, Philadelphia, Pennsylvania, USA.
authors.forename: Luciano M
authors.initials: LM
authors.lastname: Simao
authors.forename: Eman Nasr El
authors.initials: EN
authors.lastname: Dine Sultan
authors.forename: Jennifer K
authors.initials: JK
authors.lastname: Hall
authors.forename: David A
authors.initials: DA
authors.lastname: Reardon
authors.forename: M Tariq
authors.initials: MT
authors.lastname: Bhatti
mesh_terms: D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009897:Optic Chiasm / Q000473:pathology; D020339:Optic Nerve Glioma / Q000473:pathology*; D019574:Optic Nerve Neoplasms / Q000473:pathology*; D012607:Scotoma; D041623:Tomography, Optical Coherence; D014786:Vision Disorders / Q000175:diagnosis; D058609:Visual Field Tests; D014794:Visual Fields